7u-3u-6=6

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Solution for 7u-3u-6=6 equation: 


Simplifying
7u + -3u + -6 = 6

Reorder the terms:
-6 + 7u + -3u = 6

Combine like terms: 7u + -3u = 4u
-6 + 4u = 6

Solving
-6 + 4u = 6

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '6' to each side of the equation.
-6 + 6 + 4u = 6 + 6

Combine like terms: -6 + 6 = 0
0 + 4u = 6 + 6
4u = 6 + 6

Combine like terms: 6 + 6 = 12
4u = 12

Divide each side by '4'.
u = 3

Simplifying
u = 3

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